Home / 719,474.04-992,876.36-392,787.59

Finding the Fourth Proportional to 719,474.04, 992,876.36 and 392,787.59

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Solution

The fourth proportional to 719,474.04, 992,876.36 and 392,787.59 is: 542,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,474.04 : 992,876.36 = 392,787.59 : x
  2. Step 2: Convert to fraction form
    719,474.04/992,876.36 = 392,787.59/x
  3. Step 3: Cross multiply
    719,474.04x = 992,876.36 × 392,787.59
  4. Step 4: Simplify right side
    719,474.04x = 389,989,505,684.05
  5. Step 5: Solve for x
    x = 389,989,505,684.05/719,474.04
  6. Step 6: Final answer
    x = 542,048.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.